Key points from article :
People can learn to control robotic third arms using eye movements and breathing, suggesting the brain can adapt to new limbs.
Unlike prosthetics, these augmented limbs require entirely new brain connections, but are still surprisingly intuitive to control.
Researchers tested both real robotic arms and virtual ones in VR environments, with 65 volunteers successfully completing tasks.
Controlling the extra limb didn't disrupt normal breathing, speech, or vision.
Extra limbs could aid surgeons, industrial workers, and rescue teams, but may remain expensive like VR goggles for now.
Researchers are also exploring using vestigial ear muscles for additional control options.
Study led by Giulia Dominijanni at the Swiss Federal Institute of Technology Lausanne, published in Science Robotics.
